Oil burner



' Aug- 15, 1944. J; T.`sToNz-: Erm. 2,3564015 OIL BURNER Filed April 15,1942 A.Htl ornqy Patented Aug. 15, 1944 l. JohnrTi Stone onlUnNEaand'William J. Schuerholz, Jr.,

Baltimore, lMd.

'i Appiication AprilV` i5, 1942,seria11v0- 439,118

' 2 Claims. co1. 15s- 91) This invention relates to improvements in oilburners, and has for its object to provide a simple, cheap and eicientburner that can be placed in any furnace or stove and operated bynatural draft.

The invention consists of the novel construetion and arrangement ofparts and combination of parts hereinafter more fully set forth in thefollowing specification and pointed out in detail in the appendedclaims.

In the accompanying drawing- Figure 1 is a side elevation of a burnerembodying our invention.

Figure 2 is a plan view of Figure 1.

Referring to the accompanying drawing, forming part of thisspecification, and in which like reference numerals designate like partsthroughout the several views, I is a nipple to which the pipe leading tothe supply tank is connected, and through which the oil iiows by gravityto the pan 1. The oil entering the pan or channel 1 flows around thecone-shaped center 4 on both sides thereof to the baille plate 6. Thepan 'I has an integral projecting collar which fits over the pipe I andis held to the adjusted position by the set screw 9. The pipe I0 issecured to the draft pipe II by the elbow 8. The said pipe I0 has agoose neck upper end 5, the downwardly projecting end of which is funnelshaped at 3 and is held in the adjusted position above the cone-shapedcenter 4 of the pan l. The draft pipe I I is provided with a draft doorI3 hinged at I2. The cone-shaped center 4 is provided with a small pipeor nipple 2, one end of which extends down into the pan 'I while theother end projects through the coneshaped center 4 to admit air.

The cone-shaped structure is apexed upwardly, while the base merges intothe pan in a comparatively narrow rim channel as indicated in Figure 1.The oil feed pipe l enters at the bottom of this channel diametricallyopposite the converging line of the baille plate 6. The goose neck airduct 5 rises vertically in back of the pilot plate through the rear ofthe pan 1; bends forward sufliciently to align with the apex of the conemember 4; and descends vertically over same with its end portion flaredout at a wide angle to cover the apex and flow the air withoutrestriction over the surface of same. The baffle plate 6 is fitted inclosely or welded-in preferably as shown, to block the channel andprevent the passage of the oil fed into it, to the space about therising leg of the gooseneck. It is higher than the cone and ared outmouth of the goose neck. The position of the gooseneck is adjustable, bythe use of the set screw 9. Thel oil feed pipe outlet in the channelalso serves as a pilot light orifice when the ow of oil is small. Thesmall piece of piping 2 located near and pointed to it, serves to allowand guide sufficient air to this pilot to keep it lighted. Otherwise thelack of oxygen when the draft door I3 is closed, would cause it to goout. The pipe is relatively small, so that little air will be admittedat a time. This is to prevent an explosive mixture developing should thepilot light go out. The flared or funnel mouth 3 of the duct guides theair through the duct down on to the apex surface of the cone and flowsthe air across its external surface to feed the flames to the peripheralrim of the pan.

The flames at the baffle plate rise around the vertical surface of sameand heat the gooseneck. The baiile plate is converged towards the centerof the cone, with its rear edges cut at a slight angle from thevertical. The spacing of the sides of the plate is sufficient to permitmanual access to the rear stem of the duct 5 for various purposes. Theoil cannot flow to the gooseneck stem because of the obstructionafforded by the baffleplate. The latter is preferably integral with thecone. The tubing 2 is terminated at the channel just about the normallevel of the oil poured therein during the operation of the burner. Oiland fuel are to be considered synonymous in this application, as othermaterials besides the substance called oil specifically can be used inthe same way.

The operation of the device is as follows:

The oil flows through the connection I supplied from the supply tank bygravity and enters the pan 'I and flows around the base portion of thecone-shaped center 4 back to the baffle plate 6. The oil in the pan 1 islighted. The air passing into the draft pipe II and up the pipe Il)through the funnel shaped end 3 causes the burning oil in the pan 1 tospread out against the sides of the fire box. The pan 1 can be raised orlowered to bring it into the desired position with relation to thefunnel-shaped end 3 of the draft pipe, and held in the adjusted positionby the set screw 9. The amount of air to the burner can be regulated bythe draft door I3 which latter may be operated manually orautomatically.

Having thus described the invention what is claimed is:

1. An oil burner of the class described comprising in combination a panhaving a cone shaped central portion and a peripheral channel arrangedto hold a supply of oil to be burned therein, a nipple attached to thebottom of the channel for conducting the oil thereto, a pipe forsupplying air to the burner passing through the bottom of the pan andattached thereto with its portion above the pan bent into a goose-necklike form terminating over the said cone-shaped central portion and madefunnel shaped so as to cover the cone but be spaced therefrom to allowair to pass down from the said pipe across the said central portion, anda V-like baliie plate attached to the bottom ,o'fi the pan" at yone'side`of the central portion, the said baille plate havingits V-like sidesstraddling the gooseneck and extending up beyond the bottom of thefunnel-' shaped portion of the air pipe to keep the oilin the pan fromcontact with said air pipe. f 2. An oil burner of the class describedcm-f prising in combination, a circular pan having a raised centralportion of cone-like form and aperipheral channel adapted to contain oilto be burned therein, the sides of the pan forming' the '2 outer contourof the pan being ared upwardly and outwardly from the central portion, anipple attached to the bottom of the pan for introducing oil into thechannel, a pipe at one side of the pan for conducting air to the saidcentral portion and down across its slope, said pipe being 5 verticallydisposed and formed into a gooseneck outline rising from one side of thepan and bending down over the said central portion and enlarged into afunnel-like form with its Wall substantially parallel to the slope ofthe central por- 0 tion of the pan and adjustably spaced therefrom toprovide a passageway for the air to pass from the pipe down across theslope aforesaid, a V-like baliie-plate attached to the bottom of the panand at one side thereof with its sides vertically 5"disposed andstraddling the gooseneck rising "'i'above the bottomv of the pan butspaced there- -Afrom-to keep the oil in the pan and air from the pipepassing beyond the said sides to and about the exterior of the pipe. 0JOHN T. STONE.

WILLIAM J. SCHUERHOLZ, JR.

